Table 2.

Top 20 Variables in Final Model in Order of Importance in Predicting a Depressive Episode at 1-Year Follow-up

RankWave-I Covariates (Range)In Training Sample (n=2,623) Mean (SD)In Test Sample (n=1,750) Mean (SD)
1“Over the past week: You were bothered by things that usually don’t bother you.”0.44 (0.64)0.44 (0.63)
2Age (11–20 y)15.6 (1.55)15.6 (1.56)
3“Over the past week: You felt sad.”0.52 (0.63)0.51 (0.63)
4“Over the past week: You felt that you could not shake off the blues, even with help from your family and your friends.”0.33 (0.64)0.32 (0.62)
5“Over the past week: You felt depressed.”0.44 (0.64)0.46 (0.68)
6“Over the past week: You felt fearful.”0.29 (0.53)0.30 (0.54)
7“Over the past week: You felt that you were too tired to do things.”0.70 (0.71)0.69 (0.71)
8Higher value of: “How close do you feel to your [residential father]/[residential mother]?”4.66 (0.66)4.63 (0.70)
9“Over the past week: You felt hopeful about the future.”1.14 (0.98)1.16 (0.98)
10“Over the past week: You didn’t feel like eating, your appetite was poor.”0.42 (0.66)0.44 (0.66)
11“Over the past week: It was hard to get started doing things.”0.57 (0.65)0.59 (0.64)
12Body mass index (13.2–50.7) Constructed from height and weight22.2 (4.25)22.4 (4.50)
13“Over the past week: You had trouble keeping your mind on what you were doing.”0.78 (0.78)0.77 (0.78)
14“Please tell me how often you have had each of the following conditions in the past 12 months: moodiness”1.29 (0.98)1.30 (1.00)
15“Over the past week: People were unfriendly to you.”0.38 (0.61)0.39 (0.61)
16“Over the past week: You enjoyed life.”2.28 (0.83)2.29 (0.84)
17“Over the past week: You talked less than usual.”0.53 (0.72)0.54 (0.71)
18“Over the past week: You thought your life had been a failure.”0.15 (0.44)0.18 (0.48)
19“Compared with other people your age, how intelligent are you?”3.88 (1.08)3.91 (1.09)
20“I feel socially accepted.”1.89 (0.75)1.89 (0.73)